SPLIT-TYPE AIR CONDITIONERS OPERATING INSTRUCTIONS INDOOR UNIT MSZ-GA22VA MSZ-GA25VA MSZ-GA35VA MSZ-GB50VA For customers Thank you very much for purchasing this Mitsubishi room air conditioner. • To use this unit correctly and safely, be sure to read this operating instructions before use. Keep this manual carefully for later reference. • Be sure to receive a guarantee card from your dealer and check that the purchased data and shop name, etc. are entered correctly.
CONTENTS SAFETY PRECAUTIONS ........................................................................................................................................................ 2 NAME OF EACH PART ........................................................................................................................................................... 3 PREPARATION BEFORE OPERATION ............................................................................................................................
SAFETY PRECAUTIONS CAUTION Do not use the unit for special purposes. • Do not use this air conditioner to preserve precision devices, food, animals, plants and art objects. This may cause deterioration of quality, etc. Do not put a stove, etc. where they are exposed to direct airflow. • This may cause imperfect combustion. When the unit is to be cleaned, switch it off and disconnect the power supply plug or turn off the breaker.
NAME OF EACH PART PREPARATION BEFORE OPERATION Remote controller Auto restart function ■ Signal transmitting section Operation display section ON/OFF (operate/ stop) button Auto restart function is ... When the indoor unit is controlled with the remote controller, the operation mode, the set temperature and the fan speed are stored in the memory.
PREPARATION BEFORE OPERATION Remote controller 1 How to set the batteries and the current time Remove the front lid and insert batteries. Then reattach the front lid. Insert the minus pole of the batteries first. Check if the polarity of the batteries is correct. 2 Insert the minus pole of the batteries first. Handling of the remote controller • The range that the signal can reach is about 6 m when the remote controller is pointed at the front of the indoor unit.
AUTO CHANGEOVER... AUTO MODE OPERATION An automatic cooling and heating changeover operation system ensures easy control and year-round air conditioning. Once the desired temperature is set, unit operation is switched automatically between cooling and heating according to the room temperature. In addition, fan control of the outdoor unit enables cooling operation at outside temperature as low as -10°C. To select the AUTO mode: 1 2 ON/OFF Press the button.
MANUAL OPERATION (COOL, DRY, HEAT) 1 2 AIR FLOW VELOCITY AND DIRECTION ADJUSTMENT AIR FLOW velocity and direction can be selected as required. To select the COOL, DRY or HEAT mode: Press the ON/OFF ■ button. FAN button. Each time the button is pressed, the fan speed is changed in sequence: Select the operation mode by pressing the MODE button. (Low) → Each time this button is pressed, the operation mode is changed in sequence: (AUTO) → (COOL) → (DRY) → (HEAT) ■ ON/OFF Press the (Med.
AIR FLOW VELOCITY AND DIRECTION ADJUSTMENT ■ Movement of the horizontal vane COOL/DRY HEAT To change the horizontal direction of the air flow, move the vertical vane manually. At the start of heating operation Horizontal Very small position air flow AUTO Horizontal position • The vane automatically moves to horizontal position. It will not swing. NOTE: Air blows out upper than position (1). • To constantly change the air flow direction, select (SWING) with the VANE button. MANUAL After around 0.
ECONO COOL OPERATION Use this operation when you want to be comfortable in COOL mode even with energy saved. Perform the following operations while the unit is operating in the MANUAL COOL mode. ■ Press the ECONO COOL button. When the (ECONO COOL) operation is selected in COOL mode, the air conditioner performs swing operation vertically in various cycle according to the temperature of air conditioner. Also SET TEMPERATURE is automatically set 2°C higher than in COOL mode.
CLEANING THE FRONT PANEL, HEAT EXCHANGER AND FAN Front panel 1 Heat exchanger Hold both ends of the front panel and lift the 1 ) Holding panel up until a “click” is heard. (1 the hinges, lift the panel up until it is level, and pull the hinges forward to remove the 2) front panel. (2 ■ CLEANING THE CATECHIN AIR FILTER 1 3 Cleaning the catechin air filter (about once every 2 weeks) Remove the catechin air filter before cleaning the heat exchanger. Remove the catechin air filter.
CLEANING THE AIR CLEANING FILTER REPLACEMENT OF THE AIR CLEANING FILTER 1 When the capacity is lowered because of dirt, etc., it is necessary to replace the air cleaning filter. 3 Cleaning the air cleaning filter (about once every 3 months) Remove the catechin air filter (left one). The air cleaning filter is not attached to the right side catechin air filter. ■ If the dirt is noticeable, use a solution of mild detergent diluted in lukewarm water.
CLEANING THE AIR OUTLET AND FAN OF THE INDOOR UNIT 4 Before cleaning Clean the air outlet and fan of the indoor unit. (Make sure the fan has stopped.) Switch the indoor unit off with the remote controller and disconnect the power supply plug and/or turn off the breaker, otherwise you may get injured since the fan of the indoor unit rotates at high speed during operation. 1 Cleaning Manually move the horizontal vane to the end towards you, and make sure the fan has stopped. 5 Upward.
BEFORE CONTACTING THE SERVICE REPRESENTATIVE, CHECK THE FOLLOWING AGAIN Check points Question The air conditioner cannot • Is the breaker turned on? • Is the fuse blown? be operated. • Is the ON timer set? (Page 9) WHEN YOU THINK THAT TROUBLE HAS OCCURRED Question The air conditioner cannot • This protects the air conditioner according to instructions from the microprocessor. Please be operated for about 3 wait. minutes when restarted. Cracking sound is heard.
INSTALLATION, RELOCATION AND INSPECTION Installation place Avoid installing the air conditioner in the following places. • Where flammable gas could leak. To prevent the effects of a fluorescent lamp, keep as far apart as possible. CAUTION: Do not install the unit where flammable gas could leak. If gas leaks and collects around the unit, it may cause an explosion. • Where there is much machine oil. • Salty places such as the seaside. • Where sulfide gas is generated such as a hot spring.
HEAD OFFICE: TOKYO BLDG.
